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Blababa [14]
3 years ago
6

A math textbook has 900 pages. The teacher had covered 312 pages in the first form and 289 pages in the second form. The teacher

needs to cover the entire textbook in the third form. How many pages of the textbook had the teacher covered in the first and second form altogether? And how many more pages left does the teacher need to cover in the third form?
Mathematics
2 answers:
Yuliya22 [10]3 years ago
8 0

Answer:

Step-by-step explanation:

The teacher needs to cover 299 pages in the third form. And the teacher already covered 601 pages in the first and second.

Alex Ar [27]3 years ago
5 0

Answer:

312 + 289 = 601 in total of 1st and 2nd form

3rd from page = 900-601 = 299.

Vote me

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You know its a square. Which means all the sides are equal and same length. If you dont know what's a square then here is the definition:

Square is a plane figure with four equal sides and four right (90°) angles.

So now we know both of are squares, in case of the first square, PQRS, one side length is already given which is PQ=9cm. Now one side is 9cm which means all the sides are 9cm's (PQ=9cm, QR=9cm, RS=9cm,SP=9cm). So to find area just multiply them:

9cm * 9cm = 81cm^2

Now you found the area of the first square. So for the second square, ABCD, one side length is 5 cm so all the rest three sides are also 5 cm. Again, multiply them in order to find the area:

5cm * 5cm = 25cm^2

So square PQRS is 81cm^2 to that of square ABCD is 25cm^2

CAUTIONS: IT IS NOT THAT HARD YA KNOW

By the way, hope it helps! ^^

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